EP 3816616 A1 20210505 - RADIATION TRANSMISSION INSPECTION METHOD AND DEVICE, AND METHOD FOR MANUFACTURING MICROPOROUS FILM
Title (en)
RADIATION TRANSMISSION INSPECTION METHOD AND DEVICE, AND METHOD FOR MANUFACTURING MICROPOROUS FILM
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KONTROLLE DER STRAHLUNGSÜBERTRAGUNG UND VERFAHREN ZUR HERSTELLUNG EINER MIKROPORÖSEN SCHICHT
Title (fr)
MÉTHODE ET DISPOSITIF D'INSPECTION DE TRANSMISSION DE RAYONNEMENT ET MÉTHODE DE FABRICATION DE FILM MICROPOREUX
Publication
Application
Priority
- JP 2018121994 A 20180627
- JP 2019025288 W 20190626
Abstract (en)
When an X-ray transmission inspection is performed on a film reel as an inspection object including a long film wound on an outer peripheral surface of a core a plurality of times, a foreign body can be reliably detected while the influence of a difference in detection sensitivity depending on the position of the foreign body is reduced. A radiation transmission inspection method comprises: when one side surface of the reel is a side end A and another side surface is a side end B, a first foreign body detection process in which radiation emitted from a first radiation source, incident from the side end A of the film reel, transmitted through the reel, and exited from the side end B is detected by a first detector, and information regarding a foreign body is obtained; and a second foreign body detection process in which radiation emitted from a second radiation source, incident from the side end B of the film reel, transmitted through the reel, and exited from the side end A is detected by a second detector, and information regarding a foreign body is obtained.
IPC 8 full level
G01N 23/16 (2018.01)
CPC (source: EP KR US)
B07C 5/3416 (2013.01 - KR); G01N 23/04 (2013.01 - US); G01N 23/083 (2013.01 - KR); G01N 23/16 (2013.01 - KR US); G01N 23/18 (2013.01 - EP KR); G01V 5/22 (2024.01 - KR); H01M 50/417 (2021.01 - US); G01N 2223/03 (2013.01 - US); G01N 2223/643 (2013.01 - KR); G01N 2223/652 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3816616 A1 20210505; EP 3816616 A4 20220323; CN 112154322 A 20201229; JP 7283398 B2 20230530; JP WO2020004435 A1 20210513; KR 20210024438 A 20210305; US 2021181125 A1 20210617; WO 2020004435 A1 20200102
DOCDB simple family (application)
EP 19824880 A 20190626; CN 201980033727 A 20190626; JP 2019025288 W 20190626; JP 2019567390 A 20190626; KR 20207027239 A 20190626; US 201917046523 A 20190626